Rated at 2500W with short bursts of 5400W, the Mega 2 can give 120V at 1500W off four regular AC sockets. A fifth socket provides 2500W of power in a TT30 format, which is convenient on road trips ...
According to BMW, this method will charge the iX xDrive40 from 0-100 per cent in 8 hours and 15 minutes. The other method is a standard AC wall socket, which charges at a much slower rate of 2.3kW.